You might find that you only need your orange marker sparingly, but when you do use it, you want it to work. Disposable markers dry out over time and it’s common to have your infrequently used colors dry out on the board. By choosing AusPen refillable markers, you’ll never have to worry about being out of ink again. With orange ink refill bottles, you can restore the vibrant color of your dry-erase marker whenever you need. Whether your orange marker is rarely used or your favorite, one orange refill ink bottle may be enough to keep your orange marker fresh for the whole year or even longer. Each ink refill bottle gives you up to 30 refills, and the markers take only a few seconds to refill. Order online and have your classroom, conference room, university or other space stocked for another year.Sold individually.